ACS71010
High Accuracy, Hall-Effect Current Sensor with Adjustable FAULT Output
and Reference Voltage in SOICW-16 Package
FEATURES AND BENEFITS
• High operating bandwidth for fast control loops or where
high-speed currents are monitored
□ 400 kHz bandwidth
□ 1.1 µs typical response time
• High performance for optimized energy applications
□ <±0.6% sensitivity error and ±4 mV maximum offset
voltage over temperature (3σ, –40°C to 105°C)
□ Non-ratiometric operation with VREF output
□ Differential sensing for high immunity to external
magnetic fields
□ No magnetic hysteresis
• Adjustable fast overcurrent fault with 1 µs typical
response time
• Low internal primary conductor resistance 0.85 mΩ
• UL 62368-1 (edition 3) certification, highly isolated
compact SOICW-16 surface mount package
□ 5000 VRMS withstand voltage
□ 1097 VRMS / 1550 VDC basic insulation voltages
□ 565 VRMS / 800 VDC reinforced insulation voltages
• Optimized temperature range, –40°C to 105°C, with
functional operation up to 125°C
• Grade 2 AEC-Q100, automotive qualified (pending)
PACKAGE: 16-Pin SOICW (suffix MA)
Not to scale
DESCRIPTION
The ACS71010 is a fully integrated Hall-effect current sensor
in a SOICW-16 package that is factory-trimmed to provide high
accuracy over the entire operating range without the need for
customer programming. The current is sensed differentially by
two Hall plates that subtract out interfering external common-
mode magnetic fields.
The package construction provides high isolation by magnetically
coupling the field generated by the current in the conductor to the
monolithic Hall sensor IC which has no physical connection to
the integrated current conductor. The MA package is optimized
for higher isolation with a withstand voltage, 5000 VRMS, and
0.85 mΩ conductor resistance.
The ACS71010 has functional features that are externally
configurable and robust without the need for programming.
A fast overcurrent fault output provides short-circuit detection
for system protection with a fault threshold that is proportional
to the current range and can be set with an analog input. The
reference pin provides a stable voltage that corresponds to the
0 A output voltage. This reference voltage allows for differential
measurements as well as a device-referred voltage to set the
overcurrent fault threshold.
Devices are RoHS compliant and lead (Pb) free with 100%
matte-tin-platted leadframes.
APPLICATIONS
• Solar (PV) Inverters
□ PV Monitoring
□ MPPT
• EV Charging
• Energy Storage Systems (ESS)
• Power Supplies (UPS, SMPS)
• DC/AC Phase Current Sensing
ACS71010
1
IP+
2
IP+
3
IP+
4
IP+
IP
5
IP-
6
IP-
7
IP-
8
IP-
TEST 16
GND 15
TEST 14
VREF 13
VOUT 12
11
VOC
10
VDD
VDD
9
OCF
VOC
CL_VEF
CBYPASS
VREF
CL_VOUT
VOUT
OCF
Figure 1: Typical Bidirectional Application
(refer to "Application and Theory" on page 16 for additional application circuits)
The device outputs an analog signal, VOUT, that varies linearly with the AC or DC primary current, IP, within the ranges specified.
ACS71010-DS
MCO-0001859
March 14, 2025
